3866808 has 64 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 1152000.

The previous prime is 3866791. The next prime is 3866809. The reversal of 3866808 is 8086683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25533 + ... + 25683.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

Almost surely, 2^3866808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3866808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5362560).

3866808 is an abundant number, since it is smaller than the sum of its proper divisors (6858312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3866808 is a wasteful number, since it uses less digits than its factorization.

3866808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 3866808 is about 1966.4200975377. The cubic root of 3866808 is about 156.9582698402.

The spelling of 3866808 in words is "three million, eight hundred sixty-six thousand, eight hundred eight".